Spaces keyboard shortcut not working as expected
I enabled the Control-# shortcut to switch directly to a space but it doesn't seem to be working correctly. The only space I can switch directly to is 1. If I press Control-2, 3, or 4, it will not switch. The only alternative is to press Control-1 and then 2,3, or 4 to switch spaces. I tried using the Option and Command keys as the shortcut key, but they both behave the same way. Does anyone know what the issue here is? Thanks for your help!
Davy
Macbook Pro, Mac OS X (10.6.1)